Exercise device



FIG. 1 is a perspective view showing the new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is side elevational view taken from the right of FIG. 1; and,

FIG. 7 is a side elevational view taken from the left of FIG. 1.

The broken lines are for illustrative purposes only and form no part ofthe claimed design.

The ornamental design for an exercise device, as shown and described.